hi, i know that stock turbo burst on 3930K is 3.5ghz using 6 cores i wanted to over clock it a bit to 3.8 using 6 cores , i used Intel Extreme Utility to do that , i change the 3.5 to 3.8 in-front of 6-core turbo boost multiplier and ask for restart , first time booting was failed , then i reset the default setting in bios , and even uninstalled Intel extreme utility and all it's data and profiles ,

now on overloads( monitoring using cpu-z )for example rendering it only stays on 3.4ghz , before that it was on 3.5 GHz i tried restoring , flashing the bios to latest version, and even restoring windows to earlier , or removing all the drivers installed and reinstalling them , but still stocks at 3.4ghz on full-load.